• eleitl@lemmy.zip
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    3 months ago

    Tell me how to make renewable infrastructure without using fossils. Or do mining, agriculture, steel, cement, glass, shipping, and so on.

    • CanadaPlus@futurology.today
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      3 months ago

      Mining and agriculture: The Haber process but with an alternate, renewable source of heat.

      Shipping: EVs, why is this a question? Sail might make a comeback to augment electric propulsion on big ships.

      Steel: Hydrogen reduction.

      Cement and glass: Alternate heat sources again

      Although it’s worth noting cement emits CO2 on it’s own while being produced even without fossil fuels. For the purpose of this question it doesn’t matter, but for the purpose of the climate it does. Because the kilns are so hard to seal, it’s one reason why we’ll need some things to be carbon negative as well in the long term.

    • Nednarb44@lemmy.world
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      3 months ago

      We have the technology to do that all right now with renewables. Excluding raw materials for steel etc, we can mine with electric tools/machines (in fairness I don’t know if these exist as of now, but it’s not a crazy idea to just make an electric version of what exists already), we can farm with electric machines, shipping with electric vehicles, there are electric forges for glass/steel making etc. Once you electrify things, it can all be done with renewables and battery tech.

      The biggest problem (in the US) is adoption. We could have better technology and more of it if we gave a single shit about it.

      • eleitl@lemmy.zip
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        3 months ago

        I recommend you do your basic due diligence on industrial processes, material flows and do the math. You’re probably not going to like what you find.

        • CanadaPlus@futurology.today
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          3 months ago

          What will OP find?

          The only condition here is that the developing nation never buys fossil fuels. That the tools that made the tools that made the tools they’re buying used fossil fuels at some point doesn’t enter into it. Neither should it, really - you’re just asking to double-count something that way.

          • eleitl@lemmy.zip
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            3 months ago

            Sure, at roughly Edo period Japan technology, population density and bioproductivity level you don’t need fossil fuels. We all will arrive at about that level eventually.

            • CanadaPlus@futurology.today
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              3 months ago

              You can absolutely have a modern level of population density and bioproductivity without fossil fuels.

              To grow crops at modern levels you have to supply nitrogen, phosphorus, potassium and sulfur, pesticides and mechanisation. Sulfur is the only nutrient that comes directly from fossil fuels now, but it’s easy enough to find other places. Near me there’s been giant stacks of the stuff not even worth selling. Pesticides come from a variety of places, some biological, some which derive from fossil fuels now but could potentially be replaces with building blocks like xylochemicals. Mechanisation could use electrical power, and metals smelted with hydrogen instead of carbon.

              Side note, but out of curiosity, why Edo Japan? Isn’t that basically the same as Europe circa 1600 or 1700?

      • FreeBooteR69@lemmy.ca
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        3 months ago

        There are by-products from oil and gas which are essential for building manufacturing equipment needed for our industries and it’s products. While electrifying is the future, i don’t think we can wean ourselves completely off these products for some time.

  • Lembot_0006@programming.dev
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    3 months ago

    Not really. Underdeveloped countries need something of high demand but still not very complicated to produce. Fossils, grains or… That’s it, actually…

    • CanadaPlus@futurology.today
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      3 months ago

      Any other mining or agricultural product. Remittances from people sent abroad. Textiles are the next step up, then injection molded plastic crap and similar.

      It doesn’t have to be fossil fuels, I’m not sure if any of the Asian tiger economies relied on that. It’s been suggested having oil kind of stunts development, even.